EP4321184A1 - Lavage device - Google Patents
Lavage device Download PDFInfo
- Publication number
- EP4321184A1 EP4321184A1 EP23181113.4A EP23181113A EP4321184A1 EP 4321184 A1 EP4321184 A1 EP 4321184A1 EP 23181113 A EP23181113 A EP 23181113A EP 4321184 A1 EP4321184 A1 EP 4321184A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lavage
- arrangement according
- pump
- housing
- drive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000007788 liquid Substances 0.000 claims abstract description 42
- 238000006073 displacement reaction Methods 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims description 5
- 230000002572 peristaltic effect Effects 0.000 claims description 5
- 238000011010 flushing procedure Methods 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 4
- 206010052428 Wound Diseases 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000001804 debridement Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000036512 infertility Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002483 medication Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M35/00—Devices for applying media, e.g. remedies, on the human body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/71—Suction drainage systems
- A61M1/77—Suction-irrigation systems
- A61M1/774—Handpieces specially adapted for providing suction as well as irrigation, either simultaneously or independently
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M3/00—Medical syringes, e.g. enemata; Irrigators
- A61M3/02—Enemata; Irrigators
- A61M3/0233—Enemata; Irrigators characterised by liquid supply means, e.g. from pressurised reservoirs
- A61M3/0254—Enemata; Irrigators characterised by liquid supply means, e.g. from pressurised reservoirs the liquid being pumped
- A61M3/0258—Enemata; Irrigators characterised by liquid supply means, e.g. from pressurised reservoirs the liquid being pumped by means of electric pumps
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M3/00—Medical syringes, e.g. enemata; Irrigators
- A61M3/02—Enemata; Irrigators
- A61M3/0279—Cannula; Nozzles; Tips; their connection means
- A61M3/0283—Cannula; Nozzles; Tips; their connection means with at least two inner passageways, a first one for irrigating and a second for evacuating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
- B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
- B05B9/0403—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material
- B05B9/0426—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material with a pump attached to the spray gun or discharge device
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
- B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
- B05B9/08—Apparatus to be carried on or by a person, e.g. of knapsack type
- B05B9/0805—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material
- B05B9/0811—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material comprising air supplying means actuated by the operator to pressurise or compress the container
- B05B9/0816—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material comprising air supplying means actuated by the operator to pressurise or compress the container the air supplying means being a manually actuated air pump
- B05B9/0827—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material comprising air supplying means actuated by the operator to pressurise or compress the container the air supplying means being a manually actuated air pump the air pump being actuated by shaking
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2202/00—Special media to be introduced, removed or treated
- A61M2202/04—Liquids
- A61M2202/0468—Liquids non-physiological
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/10—General characteristics of the apparatus with powered movement mechanisms
- A61M2205/103—General characteristics of the apparatus with powered movement mechanisms rotating
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/82—Internal energy supply devices
- A61M2205/8206—Internal energy supply devices battery-operated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
- B05B1/08—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape of pulsating nature, e.g. delivering liquid in successive separate quantities ; Fluidic oscillators
- B05B1/083—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape of pulsating nature, e.g. delivering liquid in successive separate quantities ; Fluidic oscillators the pulsating mechanism comprising movable parts
- B05B1/086—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape of pulsating nature, e.g. delivering liquid in successive separate quantities ; Fluidic oscillators the pulsating mechanism comprising movable parts with a resiliently deformable element, e.g. sleeve
Definitions
- the invention relates to a lavage arrangement for rinsing and cleaning body parts or wounds using spray or rinsing bursts during an operation, such as when inserting artificial joints or prostheses or during wound debridement.
- the lavage arrangement has an applicator housing which forms a handle and an application opening for dispensing a rinsing liquid, which is formed in particular by water or an aqueous solution with medications and/or cleaning substances contained therein, such as a NaCl solution.
- the applicator housing also encloses a drive receptacle that is accessible via a housing opening.
- the lavage arrangement has a liquid line by means of which the application opening is or can be connected to a supply of rinsing liquid.
- the lavage arrangement has a drive unit of a pump that can be inserted into the drive receptacle and is used to convey the rinsing liquid from the reservoir to the application opening.
- the drive unit has a motor, a power supply device and a pump drive shaft that can be driven by the motor.
- Such a lavage arrangement enables gentle and thorough rinsing of the affected operating areas, in particular by means of recurring rinsing pulses. This allows bone, tissue or material residues and other contaminants that arise during an operation to be removed, which in turn prevents infections and accelerates healing processes.
- a lavage arrangement which has a drive unit with a motor and an accumulator.
- the drive unit can be inserted interchangeably into a housing and has a shaft with a drive gear.
- the drive gear meshes with a pump gear of a piston pump, which is held on the housing.
- the latter can be used as a disposable product and made hygienic after use Reasons can be disposed of, while the drive unit can be reused together with another, unused housing.
- a disadvantage of the known lavage arrangement with a reusable drive unit is that the costs and material expenditure for the housing, which is designed as a disposable part, with the parts held on it that are required for the pumping function are relatively high.
- the object of the invention is to avoid the disadvantages mentioned in a generic lavage arrangement and to further reduce costs and resource consumption.
- the lavage arrangement has a rotor that can be driven by means of the pump drive shaft and on which at least one displacement element is held, the rotor forming the pump together with a recoverable section of the liquid line, in the form of a hose pump.
- the rotor is preferably held on the drive unit together with the at least one displacement element and can be inserted into the drive receptacle as a unit in an interchangeable manner.
- the parts required for the pump function can be reused to a very large extent, while the parts required for the pump function, which are disposed of as disposable elements after use, are reduced to a minimum.
- the re-formable section of the liquid line is held on the applicator housing and the rotor can be placed against the re-formable section when the drive unit is inserted into the drive receptacle.
- at least the recoverable section of the liquid line can be used as a disposable element of the pump, which is also disposed of when the application housing is disposed of. This can ensure that when the drive unit is reused with an applicator housing that is still unused, there is also an unused, recoverable section of the liquid line.
- At least three displacement elements are held on the rotor.
- the deformable section of the liquid line can be repeatedly pressed together at relatively short intervals when the rotor is driven. In this way, recurring flushing pulses are generated from the application opening at short intervals.
- the displacement elements have at least one roller. All displacement elements are preferably designed to be roller-shaped. This enables the re-formable section of the liquid line to be pressed out evenly and in a way that is gentle on the material.
- at least one displacement element can be formed as a sliding element that is held immovably on the rotor, for example in order to reduce the maintenance effort.
- the recoverable section of the liquid line is formed by a hose with a rounded cross-section, such as in particular a circular or elliptical cross-section, which can be placed on a correspondingly rounded concave contact area of the applicator housing.
- a rounded cross-section such as in particular a circular or elliptical cross-section
- the at least one displacement element of the rotor has a contact surface which can be placed on the deformable section and has a rounded transverse profile formed transversely to a conveying direction. This makes it possible to essentially completely compress the deformable section, whereby a high pumping capacity and strong flushing pulses can be generated.
- the housing opening can be closed by a closing element that is movably held on the rest of the applicator housing.
- the closing element can be held captively on the rest of the applicator housing in order to be able to handle the latter as a one-piece disposable element both before and during use of the lavage arrangement as well as during disposal.
- the closing element is advantageously formed by a hinged lid, whereby the application opening of the applicator housing can be opened or closed particularly easily and quickly in order to be able to remove or install the drive unit.
- the applicator housing together with the closing element is made of a uniform plastic material in order to enable easy recycling of the disposable part.
- a rinsing attachment such as a funnel
- a tube or a hollow needle can be attached interchangeably in order to be able to generate a spray or rinsing jet suitable for the respective application.
- a suction opening can also be provided on the rinsing attachment, through which the rinsing liquid can be transported away after rinsing together with the rinsed particles.
- the supply of the rinsing liquid is preferably formed by a separate container which is connected to the supply section of the liquid line Applicator housing can be connected. As a result, the supply does not have to be carried along on the applicator housing when using the lavage arrangement and can be of essentially any size.
- the motor and the power supply device are preferably housed in a protected manner in a drive housing of the drive unit.
- the drive housing is in particular designed to be waterproof in order to avoid damage to the motor and the power supply device in the event of cleaning or disinfection of the drive unit or if flushing liquid escapes. This makes it possible to reuse the drive unit multiple times.
- the power supply device is advantageously formed by a rechargeable battery in order to be able to provide the power supply to the drive unit on a recurring basis in a simple manner.
- the power supply device can also be formed by a connection to a power cable in order to enable a substantially unlimited power supply.
- Fig. 1 shows a lavage arrangement 2 for rinsing and cleaning a treated body area K in the form of a wound or a bone during an operation, such as when inserting an artificial joint or a prosthesis.
- the lavage arrangement 2 has an applicator 4 with an applicator housing 6.
- This forms a handle 8 and has an application opening 10 to which a flushing attachment 12 can be attached interchangeably.
- a tubular or hollow needle-shaped or, as shown, a funnel-shaped rinsing attachment 12 can be used.
- the application opening 10 Via a liquid line 14 partially laid within the applicator housing 6, the application opening 10 is connected to a separate storage container 16, in which a rinsing liquid F that can be used for the rinsing process is stored.
- the lavage arrangement 2 preferably has a suction arrangement 18 with a suction connection 20, which can also be provided at the application opening 10 and is connected to a suction hose 22.
- the suction hose 22 can be subjected to a negative pressure, for example by connecting it to a stationary negative pressure device 24.
- the stationary negative pressure device 24 can be formed, for example, by a surgical suction device in a hospital or a doctor's office.
- the funnel-shaped rinsing attachment 12 shown can, in addition to the connection to the liquid line 14, also have a suction attachment 26, via which it can be connected to the suction connection 20.
- the funnel-shaped rinsing attachment 12 can thus be placed on the relevant part of the body K during a rinsing process in order to be able to suck in the dispensed rinsing liquid 16 again within the funnel and to be able to direct it away via the suction hose 22 together with the particles detached during rinsing.
- the applicator housing 6 has a movably held closing element 28 in the form of a hinged lid, which can be folded into an open position shown relative to the rest of the applicator housing 6.
- a drive receptacle 30 is accessible via a housing opening 32.
- the drive receptacle 30 serves to accommodate and fix a removable drive unit 34 for a pump 36 (according to Figure 3 ).
- the drive unit 34 has a motor 38 and a power supply device 40 in the form of a preferably rechargeable battery.
- the power supply device 40 can also be formed by connecting a power cable.
- the motor 38 and the power supply device 40 are protected in a preferably waterproof drive housing 42, which allows the drive unit 34 to be cleaned and disinfected multiple times without damaging the motor 38 and the power supply device 40.
- a pump drive shaft 44 which can be driven by the motor 38 is provided on the outside of the drive housing 42.
- a rotor 46 is held on this, on which at least one displacement element 48, preferably at least three circumferentially arranged displacement elements 48, are mounted.
- the displacement elements 48 are formed, for example, by rollers 50 rotatably mounted on the rotor 46.
- the displacement elements 48 can also be formed by sliding elements (not shown) which are firmly connected to the rotor 46.
- the displacement elements 48 serve together with a recoverable section 52 of the liquid line 14, according to Figure 3 , to design the pump 36 as a hose pump.
- the re-formable section 52 is formed by a hose 54 with a circular or elliptical cross section, which is guided or held on a concave contact area 56 on the inside of the applicator housing 6.
- the hose pump 36 can be activated by the rotor 46 driven by the motor 38 in order to convey the rinsing liquid F along the conveying direction R from the storage container 16 via the liquid line 14 to the applicator 4 and at the application opening 10 or to be delivered in recurring flushing bursts to the flushing attachment 12 attached to it.
- the re-formable section 52 is used Figure 3 during the rotational movement of the rotor 46 successively and repeatedly from the at least one displacer elements 48. These press the deformable section 52 together and at the same time move in the conveying direction R, whereby the rinsing liquid F contained in the liquid line 14 is also transported in the conveying direction R.
- the displacement elements 48 are designed as rollers 50 or sliding elements, they roll or slide on the hose.
- the displacement elements 48 have a cross profile 58 on a contact surface 58 that is essentially complementary to the concave contact area 56, as in Figure 4 is shown as an example of one of the roles 50.
- the drive unit 34 which was housed in the applicator housing 6 in a splash-protected manner during operation, can be removed from the drive receptacle 30 after opening the closing element 28 and inserted into an unused applicator housing 6 for reuse.
- a rinsing attachment 12 used during the application and at least the recoverable section 52 of the liquid line 14 can also be disposed of as further disposable elements.
- the power supply device 40 formed by an accumulator can also be charged or replaced. This allows When reusing the drive unit 34, the full performance of the motor 38 and the pump 36 and the lavage arrangement as a whole can be guaranteed.
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- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Anesthesiology (AREA)
- Hematology (AREA)
- Engineering & Computer Science (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Pulmonology (AREA)
- Vascular Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
Eine Lavage-Anordnung (2) weist ein Applikatorgehäuse (6) auf, das einen Handgriff (8) und eine Applikationsöffnung (10) zur Abgabe einer Spülflüssigkeit (F) aufweist und eine Antriebsaufnahme (30) umschließt, die über eine Gehäuseöffnung (32) zugänglich ist. Zudem weist die Lavage-Anordnung eine Flüssigkeitsleitung (14) auf, mittels der die Applikationsöffnung (10) mit einem Vorrat (16) der Spülflüssigkeit (F) verbindbar ist. Ferner weist die Lavage-Anordnung eine in die Antriebsaufnahme (30) einsetzbare Antriebseinheit (34) einer Pumpe (36) auf, die zur Förderung der Spülflüssigkeit (F) vom Vorrat (16) zur Applikationsöffnung (10) dient, wobei die Antriebseinheit (34) hierzu einen Motor (38), eine Stromversorgungseinrichtung (40) und eine vom Motor (38) antreibbare Pumpenantriebswelle (44) aufweist. Dabei ist vorgesehen, dass ein mittels der Pumpenantriebswelle (44) antreibbarer Rotor (46) vorgesehen ist, an dem wenigstens ein Verdrängerelement (48) gehalten ist, der zusammen mit einem rückverformbaren Abschnitt (52) der Flüssigkeitsleitung (14) die Pumpe (36) in Form einer Schlauchpumpe (36) bildet.A lavage arrangement (2) has an applicator housing (6) which has a handle (8) and an application opening (10) for dispensing a rinsing liquid (F) and encloses a drive receptacle (30) which has a housing opening (32). is accessible. The lavage arrangement also has a liquid line (14) by means of which the application opening (10) can be connected to a supply (16) of the rinsing liquid (F). Furthermore, the lavage arrangement has a drive unit (34) of a pump (36) which can be inserted into the drive receptacle (30) and which serves to convey the rinsing liquid (F) from the reservoir (16) to the application opening (10), the drive unit (34 ) for this purpose has a motor (38), a power supply device (40) and a pump drive shaft (44) which can be driven by the motor (38). It is provided that a rotor (46) that can be driven by means of the pump drive shaft (44) is provided, on which at least one displacement element (48) is held, which, together with a deformable section (52) of the liquid line (14), supports the pump (36). in the form of a hose pump (36).
Description
Die Erfindung betrifft eine Lavage-Anordnung zum Ausspülen und Reinigen von Körperstellen beziehungsweise Wunden mittels Sprüh- beziehungsweise Spülstößen während einer Operation, wie beispielsweise beim Einsetzen von künstlichen Gelenken oder Prothesen oder beim Wunddebridement. Die Lavage-Anordnung weist hierzu ein Applikatorgehäuse auf, das einen Handgriff und eine Applikationsöffnung zur Abgabe einer Spülflüssigkeit bildet, die insbesondere durch Wasser beziehungsweise eine wässrige Lösung mit darin enthaltenen Medikamenten und/oder Reinigungssubstanzen gebildet ist, wie beispielsweise eine NaCl-Lösung. Zudem umschließt das Applikatorgehäuse eine Antriebsaufnahme, die über eine Gehäuseöffnung zugänglich ist. Ferner weist die Lavage-Anordnung eine Flüssigkeitsleitung auf, mittels der die Applikationsöffnung mit einem Vorrat einer Spülflüssigkeit verbunden ist beziehungsweise verbunden werden kann. Zudem weist die Lavage-Anordnung eine in die Antriebsaufnahme einsetzbare Antriebseinheit einer Pumpe auf, die zur Förderung der Spülflüssigkeit vom Vorrat zur Applikationsöffnung dient. Hierzu weist die Antriebseinheit einen Motor, eine Stromversorgungseinrichtung und eine vom Motor antreibbare Pumpenantriebswelle auf.The invention relates to a lavage arrangement for rinsing and cleaning body parts or wounds using spray or rinsing bursts during an operation, such as when inserting artificial joints or prostheses or during wound debridement. For this purpose, the lavage arrangement has an applicator housing which forms a handle and an application opening for dispensing a rinsing liquid, which is formed in particular by water or an aqueous solution with medications and/or cleaning substances contained therein, such as a NaCl solution. The applicator housing also encloses a drive receptacle that is accessible via a housing opening. Furthermore, the lavage arrangement has a liquid line by means of which the application opening is or can be connected to a supply of rinsing liquid. In addition, the lavage arrangement has a drive unit of a pump that can be inserted into the drive receptacle and is used to convey the rinsing liquid from the reservoir to the application opening. For this purpose, the drive unit has a motor, a power supply device and a pump drive shaft that can be driven by the motor.
Eine solche Lavage-Anordnung ermöglicht dabei ein schonendes und gründliches Spülen der betroffenen Operationsbereiche, insbesondere mittels wiederkehrender Spülstöße. Hierdurch können Knochen-, Gewebe- oder Materialrückstände und sonstige Verunreinigungen, die bei einer Operation anfallen, entfernt werden, wodurch wiederum Infektionen vermieden und Heilungsprozesse beschleunigt werden können.Such a lavage arrangement enables gentle and thorough rinsing of the affected operating areas, in particular by means of recurring rinsing pulses. This allows bone, tissue or material residues and other contaminants that arise during an operation to be removed, which in turn prevents infections and accelerates healing processes.
Aus
Durch die auswechselbare Aufnahme der Antriebseinheit im Gehäuse kann letzteres als Einwegprodukt verwendet und nach einer erfolgten Anwendung aus hygienischen Gründen entsorgt werden, während die Antriebseinheit zusammen mit einem anderen, ungebrauchten Gehäuse wiederverwendet werden kann.Due to the interchangeable accommodation of the drive unit in the housing, the latter can be used as a disposable product and made hygienic after use Reasons can be disposed of, while the drive unit can be reused together with another, unused housing.
Nachteilig an der bekannten Lavage-Anordnung mit wiederverwendbarer Antriebseinheit ist, dass die Kosten und der Materialaufwand für das als Einwegteil konzipierte Gehäuse mit den daran gehaltenen Teilen, die für die Pumpfunktion benötigt werden, relativ hoch sind.A disadvantage of the known lavage arrangement with a reusable drive unit is that the costs and material expenditure for the housing, which is designed as a disposable part, with the parts held on it that are required for the pumping function are relatively high.
Die Aufgabe der Erfindung ist es, bei einer gattungsgemäßen Lavage-Anordnung die genannten Nachteile zu vermeiden und die Kosten und den Ressourcenverbrauch weiter zu senken.The object of the invention is to avoid the disadvantages mentioned in a generic lavage arrangement and to further reduce costs and resource consumption.
Diese Aufgabe wird durch eine Lavage-Anordnung mit den Merkmalen des Anspruchs 1 gelöst. Dabei weist die Lavage-Anordnung einen mittels der Pumpenantriebswelle antreibbaren Rotor auf, an dem wenigstens ein Verdrängerelement gehalten ist, wobei der Rotor zusammen mit einem rückverformbaren Abschnitt der Flüssigkeitsleitung die Pumpe bildet und zwar in Form einer Schlauchpumpe. Durch diese Verwendung einer Schlauchpumpe zum Fördern der Spülflüssigkeit können die Herstellungskosten sowohl der Pumpe als auch der Lavage-Anordnung insgesamt deutlich reduziert werden. Zudem können die auf Seiten des Gehäuses für die Pumpfunktion benötigten Teile auf ein Minimum reduziert werden. Somit lassen sich insgesamt sowohl die Kosten als auch die bei wiederkehrender Benutzung der Lavage-Anordnung benötigten Ressourcen deutlich reduzieren.This task is achieved by a lavage arrangement with the features of claim 1. The lavage arrangement has a rotor that can be driven by means of the pump drive shaft and on which at least one displacement element is held, the rotor forming the pump together with a recoverable section of the liquid line, in the form of a hose pump. By using a peristaltic pump to convey the rinsing liquid, the overall manufacturing costs of both the pump and the lavage arrangement can be significantly reduced. In addition, the parts required on the housing side for the pump function can be reduced to a minimum. This means that overall both the costs and the resources required for recurring use of the lavage arrangement can be significantly reduced.
Der Rotor ist dabei zusammen mit dem wenigstens einen Verdrängerelement vorzugsweise an der Antriebseinheit gehalten und mit dieser als Einheit austauschbar in die Antriebsaufnahme einsetzbar. Auf diese Weise können die für die Pumpenfunktion benötigten Teile zu einem sehr großen Teil wiederverwendet werden, während die für die Pumpenfunktion benötigten Teile, die nach einer Anwendung als Einwegelemente entsorgt werden, auf ein Minimum reduziert sind.The rotor is preferably held on the drive unit together with the at least one displacement element and can be inserted into the drive receptacle as a unit in an interchangeable manner. In this way, the parts required for the pump function can be reused to a very large extent, while the parts required for the pump function, which are disposed of as disposable elements after use, are reduced to a minimum.
Vorteilhafterweise ist der rückverformbare Abschnitt der Flüssigkeitsleitung am Applikatorgehäuse gehalten und der Rotor kann beim Einsetzen der Antriebseinheit in die Antriebsaufnahme an den rückverformbaren Abschnitt angelegt werden. Hierdurch kann zumindest der rückverformbare Abschnitt der Flüssigkeitsleitung als Einwegelement der Pumpe verwendet werden, das beim Entsorgen des Applikationsgehäuses mitentsorgt wird. Hierdurch kann sichergestellt werden, dass bei Wiederverwendung der Antriebseinheit mit einem noch unbenutzten Applikatorgehäuse auch ein unbenutzter rückverformbarer Abschnitt der Flüssigkeitsleitung vorliegt. Auf diese Weise kann bei der Wiederverwendung der Antriebseinheit mit einem jeweils neuen Applikatorgehäuse mit rückverformbaren Abschnitt einerseits die Keimfreiheit gewährleistet werden, als auch das Auftreten von Undichtigkeiten an der Schlauchpumpe in Folge von Verschleiß vermieden werden.Advantageously, the re-formable section of the liquid line is held on the applicator housing and the rotor can be placed against the re-formable section when the drive unit is inserted into the drive receptacle. As a result, at least the recoverable section of the liquid line can be used as a disposable element of the pump, which is also disposed of when the application housing is disposed of. This can ensure that when the drive unit is reused with an applicator housing that is still unused, there is also an unused, recoverable section of the liquid line. In this way, when the drive unit is reused with a new applicator housing with a re-formable section, sterility can be ensured on the one hand, and the occurrence of leaks on the peristaltic pump as a result of wear can be avoided.
In einer besonders vorteilhaften Ausführungsform sind am Rotor wenigstens drei Verdrängerelemente gehalten. Hierdurch kann der rückverformbare Abschnitt der Flüssigkeitsleitung beim Antrieb des Rotors in relativ kurzen Abständen wiederkehrend zusammengepresst werden. Auf diese Weise werden in kurzen zeitlichen Abständen wiederkehrende Spülstöße aus der Applikationsöffnung heraus erzeugt.In a particularly advantageous embodiment, at least three displacement elements are held on the rotor. As a result, the deformable section of the liquid line can be repeatedly pressed together at relatively short intervals when the rotor is driven. In this way, recurring flushing pulses are generated from the application opening at short intervals.
Zudem ist es günstig, wenn die Verdrängerelemente wenigstens eine Rolle aufweisen. Vorzugsweise sind dabei alle Verdrängerelemente rollenförmig ausgebildet. Hierdurch wird ein gleichmäßiges und materialschonendes Auspressen des rückverformbaren Abschnittes der Flüssigkeitsleitung ermöglicht. Alternativ zur Rolle kann wenigstens ein Verdrängerelement als am Rotor unbeweglich gehaltenes Gleitelement gebildet sein, um beipielsweise den Wartungsaufwand zu verringern.It is also advantageous if the displacement elements have at least one roller. All displacement elements are preferably designed to be roller-shaped. This enables the re-formable section of the liquid line to be pressed out evenly and in a way that is gentle on the material. As an alternative to the roller, at least one displacement element can be formed as a sliding element that is held immovably on the rotor, for example in order to reduce the maintenance effort.
Dabei ist es günstig, wenn der rückverformbare Abschnitt der Flüssigkeitsleitung durch einen Schlauch mit abgerundetem Querschnitt, wie insbesondere einem kreisförmigen oder elliptischen Querschnitt gebildet ist, der an einen entprechend abgerundeten konkaven Anlagebereich des Applikatorgehäuses anlegbar ist. Hierdurch wird während des Zusammenpressens des rückverformbaren Abschnittes eine gleichmäßige flächige Anlage der Flüssigkeitsleitung am Applikatorgehäuse gewährleistet. Auf diese Weise können Beschädigungen an der Flüssigkeitsleitung während des Pumpvorganges vermieden werden.It is advantageous if the recoverable section of the liquid line is formed by a hose with a rounded cross-section, such as in particular a circular or elliptical cross-section, which can be placed on a correspondingly rounded concave contact area of the applicator housing. This ensures a uniform, flat contact of the liquid line on the applicator housing while the recoverable section is pressed together. In this way Damage to the liquid line can be avoided during the pumping process.
Vorteilhafterweise weist das wenigstens eine Verdrängerelement des Rotors eine an den rückverformbaren Abschnitt anlegbare Kontaktfläche mit einem quer zu einer Förderrichtung ausgebildeten, abgerundeten Querprofil auf. Hierdurch ist ein im Wesentlichen vollständiges Zusammenpressen des rückverformbaren Abschnittes möglich, wodurch eine hohe Pumpleistung und starke Spülstöße generiert werden können.Advantageously, the at least one displacement element of the rotor has a contact surface which can be placed on the deformable section and has a rounded transverse profile formed transversely to a conveying direction. This makes it possible to essentially completely compress the deformable section, whereby a high pumping capacity and strong flushing pulses can be generated.
Dabei ist es günstig, wenn die Gehäuseöffnung durch ein am übrigen Applikatorgehäuse beweglich gehaltenes Schließelement verschließbar ist. Auf diese Weise kann das Schließelement unverlierbar am übrigen Applikatorgehäuse gehalten werden, um letzteres sowohl vor und während der Verwendung der Lavage-Anordnung als auch bei der Entsorgung als einstückiges Einwegelement handhaben zu können.It is advantageous if the housing opening can be closed by a closing element that is movably held on the rest of the applicator housing. In this way, the closing element can be held captively on the rest of the applicator housing in order to be able to handle the latter as a one-piece disposable element both before and during use of the lavage arrangement as well as during disposal.
Hierbei ist das Schließelement vorteilhafterweise durch einen Klappdeckel gebildet, wodurch die Applikationsöffnung des Applikatorgehäuses besonders einfach und schnell geöffnet beziehungsweise geschlossen werden kann, um die Antriebseinheit entnehmen beziehungsweise einbauen zu können.Here, the closing element is advantageously formed by a hinged lid, whereby the application opening of the applicator housing can be opened or closed particularly easily and quickly in order to be able to remove or install the drive unit.
Zudem ist es günstig, wenn das Applikatorgehäuse zusammen mit dem Schließelement aus einem einheitlichen Kunststoffmaterial hergestellt ist, um ein einfaches Recycling des Einwegteils zu ermöglichen.In addition, it is favorable if the applicator housing together with the closing element is made of a uniform plastic material in order to enable easy recycling of the disposable part.
Vorteilhafterweise kann an der Applikationsöffnung zudem ein Spülaufsatz, wie beispielsweise ein Trichter; ein Rohr bzw. eine Hohlnadel austauschbar angebracht werden, um einen für den jeweiligen Anwendungszweck geeigneten Sprühbeziehungsweise Spülstrahl generieren zu können. Zudem kann an dem Spülaufsatz zusätzlich eine Einsaugöffnung vorgesehen sein, über die die Spülflüssigkeit nach dem Ausspülen zusammen mit freigespülten Partikeln abtransportiert werden kann.Advantageously, a rinsing attachment, such as a funnel, can also be attached to the application opening; a tube or a hollow needle can be attached interchangeably in order to be able to generate a spray or rinsing jet suitable for the respective application. In addition, a suction opening can also be provided on the rinsing attachment, through which the rinsing liquid can be transported away after rinsing together with the rinsed particles.
Der Vorrat der Spülflüssigkeit ist bevorzugterweise durch einen separaten Behälter gebildet, der über einen Versorgungsabschnitt der Flüssigkeitsleitung mit dem Applikatorgehäuse verbindbar ist. Hierdurch muss der Vorrat bei der Verwendung der Lavage-Anordnung nicht am Applikatorgehäuse mitgeführt werden und kann im Wesentlichen beliebig dimensioniert werden.The supply of the rinsing liquid is preferably formed by a separate container which is connected to the supply section of the liquid line Applicator housing can be connected. As a result, the supply does not have to be carried along on the applicator housing when using the lavage arrangement and can be of essentially any size.
Vorzugsweise sind der Motor und die Stromversorgungseinrichtung in einem Antriebsgehäuse der Antriebseinheit geschützt aufgenommen. Das Antriebsgehäuse ist hierzu insbesondere wasserdicht ausgebildet, um eine Beschädigung des Motors und der Stromversorgungseinrichtung im Falle einer Reinigung oder Desinfektion der Antriebseinheit oder bei Austritt von Spülflüssigkeit zu vermeiden. Dadurch kann eine vielfache Wiederverwendung der Antriebseinheit ermöglicht werden.The motor and the power supply device are preferably housed in a protected manner in a drive housing of the drive unit. For this purpose, the drive housing is in particular designed to be waterproof in order to avoid damage to the motor and the power supply device in the event of cleaning or disinfection of the drive unit or if flushing liquid escapes. This makes it possible to reuse the drive unit multiple times.
Ferner ist die Stromversorgungseinrichtung vorteilhafterweise durch einen wiederaufladbaren Akkumulator gebildet, um die Stromversorgung der Antriebseinheit in einfacher Weise wiederkehrend zur Verfügung stellen zu können. Alternativ hierzu kann die Stromversorgungseinrichtung auch durch einen Anschluss eines Stromkabel gebildet sein, um eine im Wesentlichen unbegrenzte Stromversorgung zu ermöglichen.Furthermore, the power supply device is advantageously formed by a rechargeable battery in order to be able to provide the power supply to the drive unit on a recurring basis in a simple manner. Alternatively, the power supply device can also be formed by a connection to a power cable in order to enable a substantially unlimited power supply.
Es wird darauf hingewiesen, dass alle oben beschriebenen Merkmale des erfindungsgemäßen Gegenstandes untereinander austauschbar beziehungsweise kombinierbar sind, sofern ein Austausch oder eine Kombination derselben aus technischen Gründen nicht ausgeschlossen ist.It should be noted that all features of the object according to the invention described above are interchangeable or combinable with one another, provided that an exchange or combination thereof is not excluded for technical reasons.
In den Figuren ist eine beispielhafte Ausführungsform der Erfindung dargestellt. Es zeigen:
- Figur 1
- eine Ansicht einer erfindungsgemäßen Lavage-Anordnung,
Figur 2- eine explodierte Ansicht eines Applikators der Lavage-Anordnung nach
Figur 1 , - Figur 3
- einen Schnitt durch eine Schlauchpumpe des Applikators nach
undFigur 2 Figur 4- eine teilweise geschnittene Draufsicht auf ein Verdrängerelement der Schlauchpumpe in Richtung IV aus
Figur 3 .
- Figure 1
- a view of a lavage arrangement according to the invention,
- Figure 2
- an exploded view of an applicator following the lavage assembly
Figure 1 , - Figure 3
- a cut through a peristaltic pump of the applicator
Figure 2 and - Figure 4
- a partially sectioned top view of a displacement element of the peristaltic pump in direction IV
Figure 3 .
Über eine teilweise innerhalb des Applikatorgehäuses 6 verlegte Flüssigkeitsleitung 14 ist die Applikationsöffnung 10 mit einem separaten Vorratsbehälter 16 verbunden, in dem eine für den Spülvorgang verwendbare Spülflüssigkeit F bevorratet ist.Via a
Ferner weist die Lavage-Anordnung 2 vorzugsweise eine Absauganordnung 18 mit einem Sauganschluss 20 auf, der ebenfalls an der Applikationsöffnung 10 vorgesehen sein kann und mit einem Absaugschlauch 22 verbunden ist. Der Absaugschlauch 22 kann dabei mit einem Unterdruck beaufschlagt werden, wie beispielsweise durch dessen Verbindung mit einer stationären Unterdruckeinrichtung 24. Die stationäre Unterdruckeinrichtung 24 kann dabei beispielsweise durch einen Chirurgiesauger eines Krankenhauses oder einer Arztpraxis gebildet sein.Furthermore, the
Der dargestellte trichterförmige Spülaufsatz 12 kann dabei neben der Verbindung mit der Flüssigkeitsleitung 14 zudem einen Saugaufsatz 26 aufweisen, über den er mit dem Sauganschluss 20 verbunden werden kann. Der trichterförmige Spülaufsatz 12 kann somit während eines Spülvorganges auf die betreffende Körperstelle K aufgesetzt werden, um die abgegebene Spülflüssigkeit 16 innerhalb des Trichters wieder einsaugen und zusammen mit den beim Spülen abgelösten Partikeln über den Absaugschlauch 22 wegleiten zu können.The funnel-shaped
Wie insbesondere aus
An der Außenseite des Antriebsgehäuses 42 ist eine vom Motor 38 antreibbare Pumpenantriebswelle 44 vorgesehen. An dieser ist ein Rotor 46 gehalten, an dem wenigstens ein Verdrängerelement 48, vorzugsweise wenigstens drei umlaufend angeordnete Verdrängerelemente 48 gelagert sind. Die Verdrängerelemente 48 sind dabei beispielhaft durch verdrehbar am Rotor 46 gelagerte Rollen 50 gebildet. Alternativ hierzu können die Verdrängerelemente 48 auch durch fest mit dem Rotor 46 verbundene Gleitelemente gebildet sein (nicht dargestellt).A
In jedem Fall dienen die Verdrängerelemente 48 zusammen mit einem rückverformbaren Abschnitt 52 der Flüssigkeitsleitung 14, gemäß
Die Schlauchpumpe 36 ist durch den vom Motor 38 angetriebenen Rotor 46 aktivierbar, um die Spülflüssigkeit F entlang der Förderrichtung R vom Vorratsbehälter 16 über die Flüssigkeitsleitung 14 zum Applikator 4 zu fördern und an der Applikationsöffnung 10 beziehungsweise an dem daran aufgesetzten Spülaufsatz 12 in wiederkehrenden Spülstößen abzugeben.The
Hierzu wird der rückverformbare Abschnitt 52 nach
Nach einer Verwendung der Lavage-Anordnung 2 gemäß
Vor der Wiederverwendung der Antriebseinheit 34 mit dem noch unbenutzten neuen Applikatorgehäuse 6 kann zudem die durch einen Akkumulator gebildete Stromversorgungseinrichtung 40 aufgeladen oder ausgewechselt werden. Hierdurch kann bei der Wiederverwendung der Antriebseinheit 34 die volle Leistung des Motors 38 und der Pumpe 36 und der Lavage-Anordnung insgesamt gewährleistet werden.Before reusing the
Es wird darauf hingewiesen, dass alle oben beschriebenen Elemente und Merkmale der verschiedenen Ausführungsformen des erfindungsgemäßen Gegenstandes untereinander austauschbar beziehungsweise kombinierbar sind, sofern ein Austausch oder eine Kombination derselben aus technischen Gründen nicht ausgeschlossen ist.It should be noted that all of the elements and features of the various embodiments of the object according to the invention described above are interchangeable or combinable with one another, provided that an exchange or combination thereof is not excluded for technical reasons.
Claims (13)
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DE102022120056.6A DE102022120056A1 (en) | 2022-08-09 | 2022-08-09 | Lavage arrangement |
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EP23181113.4A Pending EP4321184A1 (en) | 2022-08-09 | 2023-06-23 | Lavage device |
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US (1) | US20240050722A1 (en) |
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US20110165005A1 (en) * | 2008-07-03 | 2011-07-07 | Bien-Air Holding S.A. | Peristaltic pump and irrigation line |
US20170119939A1 (en) * | 2014-12-15 | 2017-05-04 | Daniel Glenn Doerr | Powered lavage handle and associated use therefore |
EP3706823B1 (en) | 2017-11-10 | 2021-04-14 | UTK Solutions GmbH | Irrigation system |
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US6129699A (en) | 1997-10-31 | 2000-10-10 | Sorenson Development, Inc. | Portable persistaltic pump for peritoneal dialysis |
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2023
- 2023-06-23 EP EP23181113.4A patent/EP4321184A1/en active Pending
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Publication number | Priority date | Publication date | Assignee | Title |
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US20110165005A1 (en) * | 2008-07-03 | 2011-07-07 | Bien-Air Holding S.A. | Peristaltic pump and irrigation line |
US20170119939A1 (en) * | 2014-12-15 | 2017-05-04 | Daniel Glenn Doerr | Powered lavage handle and associated use therefore |
EP3706823B1 (en) | 2017-11-10 | 2021-04-14 | UTK Solutions GmbH | Irrigation system |
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